| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide construction machinery that comprises a rear frame for mounting equipment, having a structure suitable for a small-sized pile driver capable of being transported only by bringing down a leader.SOLUTION: Construction machinery (a pile driver 11) includes a lower structure 12, a revolving super structure 13 that is revolvably provided on an upper part of the lower structure 12, and work devices (leaders 16 and 17) that are provided in the front of the revolving super structure. A lower part of a back end of the revolving super structure is provided with a rear frame 23 that can be rotated to the storage state of rising along a back end surface of the revolving super structure and the usage state of horizontally protruding in the backward direction of the revolving super structure.</p> |
